1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
olasank [31]
3 years ago
13

A researcher was studying mutations in bacteria found a certain bacteria had

Biology
2 answers:
AVprozaik [17]3 years ago
8 0
Evolution of organisms
Yanka [14]3 years ago
6 0

Answer:

Evolution Genetics

Explanation:

Genetic evolution of living beings is the process of the disappearance or emergence of new species due to genetic variability. This process is very slow and can take up to thousands of years so it is difficult to keep up with the evolution process.

The research shown in the question above is an example of genetic evolution research. This is because antibiotics are substances that have the power to kill any kind of bacteria, however some bacteria evolve, new species of bacteria have emerged that have the ability to resist and survive the action of antibiotics.

You might be interested in
Which of the following does not characterize the lungs of birds?
kompoz [17]

Answer:

C) They are compressed during inhalation.

Explanation:

Birds breathe through rigid lungs that are located in the animal's thoracic region. The trachea of birds divides into bronchi that branch inside the lungs into very thin tubes called parabronchials or parabroncholes, which are irrigated by blood capillaries that allow gas exchange.

In birds there are no pulmonary alveoli (as in mammals), but air capillaries that depart from the parabroncholes. Oxygen gas passes from these capillaries to the blood capillaries, thus causing gas exchange.

In the lower portion of the bird's trachea, before branching the bronchi, we can find the syringe, a bag-like structure that has vocal cords responsible for the birds' scream and song. Most of the time, the sound emitted by birds serves to attract the mate, mark territory and prevent birds of the same species against some predator or other danger.

8 0
3 years ago
Question 11 of 25
timurjin [86]
It’s A because when changing it to scientific notation it goes to 2.75 and when going to the left from the decimal point it is negative
8 0
3 years ago
Hepatitis "___" may be dormant in the body for years before the signs and symptoms appear.
solniwko [45]
Hepatitis 'C' may be dormant in the body for years before the signs and symptoms. Hepatitis A, B, and C are cause by a virus. Hepatitis A is also known as Infectious Hepatitis, Hepatitis B is also known as serum Hepatitis. Hepatitis C is a viral infection that causes liver inflammation, sometimes leading to serious liver damage, it spreads through contaminated blood.
4 0
3 years ago
A dumping site in the small town of Love Canal, New York, was used for the disposal of industrial chemical wastes from 1970-1975
zheka24 [161]

Answer:

There is no control group and variables were not addressed.

Explanation:

In the context, it is given that there is a dumping ground in a small town called Love Canal and harmful chemical waste of industries are dumped there. Lately, it is noticed that there were traces of the toxic substances on the walls of the schools and the hospitals. The hospitals also noticed that during the period of 1970 to 1980, there were increase in the number of the birth defects in the area. The people of the Love Canal has genetic abnormalities and the chemical waste is responsible for it.

Thus it can be concluded that there is a no such any control group in this case. The confounding variables like the comorbidities as well as the family history of the genetic defects were not addressed.

4 0
2 years ago
Can someone help me with this please
marysya [2.9K]
The correct option is B. 80% of the radioactive phosphorus used in the experiment entered the cell showing that DNA was the hereditary material.
3 0
3 years ago
Other questions:
  • Which behavior in a 20-month-old would lead the nurse to suspect that the child is being abused?
    14·1 answer
  • The movement of solute molecules from an area of high concentration to an area of low concentration that does not require energy
    8·1 answer
  • An older adult living in a long-term care facility has been receiving lithium 600 mg twice a day for 3 weeks to ease manic behav
    8·1 answer
  • Summarize how cellular transport helps maintain homeostasis within a cell
    14·1 answer
  • A type of communication that moves in any direction, skips authority levels, and is as likely to satisfy social needs as it is t
    10·1 answer
  • Please help me in this question please
    12·2 answers
  • What is a joint? describe the function of movable joints in the body?
    15·1 answer
  • If the earthquake's focus was 2 kilometers below Earth's surface, the earthquake occurred in the?
    8·1 answer
  • What is science explain?​
    9·2 answers
  • Help with the bottom part
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!